Improvement in self-venting bungs



C. F. SPECER.

Self-Venting Bungs. No." 142,051. mam Augumg,813.

UNITED STATES PATENT OFFICE.

CHARLES F. SPENCER, 0F CLEVELAND, OHIO.

IMPROVEMENT IN SELF-VENTING BUNGS.

Specification forming part of Letters Patent No. 142,051, dated August19,1873, application filed March 6, 1873.

' the faucet is opened, to admit air to the barrel in order to dischargethe liquid contents, all of which is fully hereinafter described.

In the drawings, Figure 1 is a vertical section of my self-venting bung;Figs. 2 and 3, bottom views, showing the manner of conning the valve inplace; Fig. 4, a vertical section of Fig. 3; and, Fig. 5, a detailedview of the metallic seat, the elastic steam -packing valve, and thesupporting-staple.

The bung A is provided witha central pass- 4 age or channel extendingthrough the same,

and terminating in a recess, D. In the lower end of the passageC islocated a metal tube E, with or without a flange, a, to form a seat' forthe valve F. The elastic steam -packing valve F is confined in therecess D by means of a staple, G, the arms b b of which are eithersmooth or barbed in such a manner as to be in close contact with itsseat, whereby that portion of said valve on each side of the staple isdrawn downwardly, when the faucet is opened, to admit air to the barrel,and allow the discharge of the liquid; but, when the flow of liquid iscut offthe sides of the valve return in close contact with the seat bymeans of the pressure of the gas and air in the barrel, aided by thevalves own elasticity.

An important and essential feature of my invention consists in makingthe valve of what is known as steam-packing, so that it will resist theaction of steam, and not be aected thereby when the barrels are cleansedafter be ing used and returned to the brewery for refilling.

I am aware that a valve has been arranged upon a stem passing through aVentilating passage, said stern being surrounded by a coiled spring forthe purpose of supporting said valve in place but such is not myinvention. I dispense with such valve-stem, and also with the spring,which is an important consideration in the cost and construction ct' thebung.

I claim as my invention- The bung A, having the central channel orpassage C and recess D, in combination with the elastic steam-packingvalve F, secured in position against its seat by the staple G, allconstructed and arranged substantially as and for the purpose specified.

In testimony that I claim the foregoing I have hereunto set my hand this27th day of February, 1878.

CHAS. F. SPENCER.

Witnesses:

W. H. RUNNELLS, JAs. A. MANoHEsTEE.

